Bobbin-holding attachment for sewing-machines.



PATENTED JUNE 16, 1908.

A. W. CHRISTENSEN. BOBBIN HOLDING ATTACHMENT FOR SEWING MACHINES.

APPLICATION FILED JULY 1, 1907.

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UNITED STATES ANNA WOHLERT CHRISTENSEN, OF DETROIT,

PATENT OFFICE.

MICHIGAN.

Specification of Letters Patent.

Patented June 16, 1908.

Application filed July 1, 1907. Serial No. 381,777.

To all whom it may concern:

Be it known that I, ANNA WoHLERT CHRIS- TENSEN, a citizen of the United States of America, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Bobbin-Holding Attachment for Sewing-Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

It is the object of the invention to provide means for utilizing thread previously wound upon a bobbin for the upper thread of a machine and without the necessity of rewinding upon the spool.

To this end, the invention consists in the novel construction of a bobbin holder which may remain in permanent attachment to the machine in a position for use, as above described, and without interference with the ordinary operation of the machine.

In the drawings-Figure 1 is an elevation of my attachment; Fig. 2 is a perspective view illustrating a modified construction; and Fig. 3 is a side elevation thereof.

A is the spool supporting post of a sewing machine and B indicates in dotted lines a spool thereon. My invention comprises a bobbin holding frame C, which is swiveled upon the post A, as by the eye portion a, and has lateral portions 5 and b of su'flicient length to clear the radius of the spool. This frame is preferably made of wire, the eye portion a being formed by a coil, and the laterally projecting portions Z) 5 being formed at the opposite ends thereof. The portion 6 is further provided with an upwardly projecting portion 0 terminating in an outwardly projecting portion d. At the end of this portion (Z is a downwardly projecting pintle e and a corresponding upwardly projecting pintle f is formed at the outer end of the arm I). These two pintles e and f are adapted for insertion in the opposite ends of a tubular bob bin, and the frame 0 has sufficient resiliency to permit of springing the pintles apart for engagement and disengagement.

the modification illustrated in Fig. 2

the device is adapted for holding a solid shank bobbin. For this purpose, the pintles e and f are omitted and in place thereof socket bearings g for the pointed ends of the either with the sockets g or the pintles e and f according to the character of the bobbin itself, after which the machine may be threaded in the usual way and in use the thread reeled from the bobbin as it would be reeled from the spool'on the post A. I What I claim as my invention is: 1 1. The combination with a bobbin and the l spool-supportin post of a sewing machine, l of a bobbin hol der formed of wire bent to form an eye portion for engaging the spoolsupporting post and to form laterally-extending arms, an upwardly-extending portion on one of the arms, an outwardly-extending portion on said upwardly-extending portion, and means on said outward extension and the other one of said arms for engaging the bobbin.

2. The combination with a spool supporting post of a sewing machine and a bobbin, of a bobbin holder formed of Wire bent to form an eye portion a for engaging with the spool supporting post, the arms I) and b rojecting outwardly therefrom, the upwardl y extending portion 0 on the arm I) and the outwardly extending portion (Z therefrom and oppositely projecting pintles e and f, substantially as and for the purpose described.

3. The combination with a bobbin, of a holder therefor made of wire bent to form an eye for engaging the spool post of a sewing machine, adapted to fit underneath the spool j and shaped so as to provide clearance for the revolving of the spool.

In testimony whereof I aflix my signature 1n presence of two witnesses.

ANNA WOHLERT CHRISTENSEN.

Witnesses:

N ELLIE KINSELLA, JAMEs P. BARRY. 

